Application Notes Optical Components Laser Crystals and Components Infrared Optics Optical Filters Scintillators Wafers and Substrates Crystal Materials Glass Materials

The Most Popular Blogs

Sapphire (Al2O3)

This article is a general introduction to Sapphire (Al2O3), including the structure and orientations of sapphire, the mechanical, optical, and thermal properties of sapphire, and the sapphire growth m..

JGS1

JGS1 is a synthetic UV-grade quartz glass suitable for optical applications equivalent to Corning 7980. JGS1 has high transmission across the UV to the NIR spectrum (180-2500nm), and is particularly a..

Introduction to Waveplates and Retarders

It is crucial for buyers to discriminate the differences between the various types of Waveplates and Retarders, here is a general, simple and approachable introduction about waveplates and retarders, ..

Optical Basics: Spherical Aberrations and Coma

This is a short piece of explanations about spherical aberrations and coma/comatic aberrations, which belong to the wider range of optical aberrations. Straightforward and readable detailed informatio..

Introduction to Acousto-Optic Crystals

Acousto-Optic Crystals are crystals that exhibits photoelastic effects, where mechanical waves stimulate elastic strains in the crystals, acting as periodic phase gratings and alters the refractive in..

Technical Overview of Ce:YAG Crystal

Technical Specifications
Product Name: Cerium - doped Yttrium Aluminum Garnet Crystals
Simplified chemical formula: Ce :YAG (Cerium-doped Yttrium Aluminum Garnet)
Material: Crystalline material ( Main components: Yttrium 45%, Aluminum 22.5%, Oxygen 32.3%, Cerium 0.2% )
Product images:
Ce:YAG crystal

Product Introduction:

Cerium-doped yttrium aluminum garnet (Ce:YAG) crystal is a commonly used scintillator material that emits fluorescence under X-ray or other radiation excitation. This crystal exhibits high luminous efficiency and a wide pulse response, with an emission peak at 550 nm, which perfectly matches the sensitivity wavelength of photodiodes, making it particularly suitable for lightly charged particle detection systems using photodiodes as photodetectors. Furthermore, Ce:YAG crystal possesses advantages such as non-hygroscopicity, high-temperature resistance, and thermodynamic stability, making it suitable for applications in extreme detection environments.

In terms of manufacturing process, yttrium oxide and alumina raw materials are thoroughly mixed and then cerium oxide is incorporated. Crystals are then grown using a high-temperature chemical reaction and the Czochralski method. After growth, the crystals are cut and their end faces are polished with high precision. The external dimensions can be customized according to customer requirements .

Working principle:

Cerium-doped yttrium aluminum garnet (Ce:YAG) emits fluorescence upon excitation by X-rays or other radiation, with a central wavelength of approximately 550 nm. The fluorescence intensity is closely related to the intensity and energy of the radiation; therefore, measuring the fluorescence signal accurately reflects the radiation intensity, enabling effective detection. When Ce:YAG is fabricated into thin sheets, it can be widely used in high-resolution soft X-ray imaging systems, improving image quality and detection accuracy.

Production process:
Crystal growth: Cerium-doped yttrium aluminum garnet crystals are grown in a high-temperature furnace using the Czochralski method to ensure the integrity of the material structure and the uniform distribution of chemical composition.
Cutting: Precisely cut the crystal according to the size requirements specified by the customer.
Precision machining: The crystal end face is parallelized, followed by fine grinding and optical-grade polishing to ensure that the surface accuracy and surface finish meet optical standards.
Inspection and Packaging: The product dimensions, end face parallelism, and surface quality are strictly inspected. Once they meet the requirements, they are packaged in a clean environment to ensure product quality and safe use.

Application areas:

This material can be applied in multiple fields, including fluorescence conversion of white LEDs, laser illumination, soft X-ray microscopy, and high-energy radiation detection.

Tags: Ce:YAG crystal